Packed electric lamp of triangular planform

Abstract

A packed electric lamp including a carton having three articulated sides defining a sleeve of triangular cross-section with opposing open ends and two opposing triangular flaps closing the open ends of the triangular sleeve. A reflector lamp having a broad face and a tapered reflector body is arranged in the carton with its broad face extending along one of the three sides defining the triangular sleeve, the other two carton sides defining the triangular sleeve extending along the tapered body and terminating at a corner of the sleeve adjacent the distal end of the reflector body. The carton has a significantly smaller plan form than rectangular or square cuboidal cartons, allowing more lamps to fit in a given space on retail shelves. The carton is formed from a unitary blank having three rectangular panels joined at fold lines and first and second opposing primary triangular flaps articulated from respective ones of the rectangular panels. The corners of the opposing triangular sides may be truncated to further reduce the planform of the carton and lamp packed therein.

What we claim is: 
     
       1. A packed electric lamp, comprising: a) an electric lamp having a broad face and a tapered body extending from said face and terminating at a distal end; and   b) a carton for holding said lamp, said carton comprising three sides defining a sleeve of triangular cross-section with opposing open ends, two opposing triangular sides closing the open ends of the sleeve, and securing means for securing said carton in a closed manner about said electric lamp,   said electric lamp being arranged in said carton between said opposing triangular sides with said broad face extending along one of said three sides defining said triangular sleeve, the other two of said three sides defining the triangular sleeve extending generally along said tapered body and terminating at a corner of said triangular sleeve adjacent said distal end of said tapered body.   
     
     
       2. A packed electric lamp according to claim 1, wherein said lamp is a sealed-beam reflector lamp in which said broad face is one of a rectangular lens and a circular lens and said tapered body comprises a reflector. 
     
     
       3. A packed electric lamp according to claim 1, wherein said carton is comprised by a unitary blank having three articulated panels for defining said triangular sleeve and two primary triangular flaps each articulated from one of said three panels for closing a respective open end of said triangular sleeve. 
     
     
       4. A packed electric lamp according to claim 3, wherein said securing means includes a said primary triangular flap having a locking tab for detachably securing it to said articulated panels. 
     
     
       5. A packed electric lamp according to claim 4, wherein said lamp is a sealed-beam reflector lamp in which the broad face is one of a rectangular lens and a circular lens and the tapered body comprises a reflector. 
     
     
       6. A packed electric lamp according to claim 3, wherein said sleeve is cylindrical and the shape of said triangular flaps and the cross-section of said cylindrical sleeve formed by said three articulated panels is defined by an isosceles right-triangle. 
     
     
       7. A packed electric lamp according to claim 1, wherein said sleeve is cylindrical and the shape of the opposing triangular sides and the cross-section of said cylindrical sleeve defined by said three sides is defined by an isosceles right-triangle. 
     
     
       8. A packed electric lamp according to claim 7, wherein said two opposing triangular sides are parallel to each other and normal to each of said three sides defining said triangular, cylindrical sleeve. 
     
     
       9. A packed electric lamp according to claim 1, wherein said two opposing triangular sides are parallel to each other and normal to each of said three sides defining said triangular, cylindrical sleeve. 
     
     
       10. A packed electric lamp according to claim 1, wherein said opposing triangular sides of said carton have a pair of opposing truncated corners, and said panels defining said triangular sleeve include a narrow portion extending between said truncated corners. 
     
     
       11. A packed electric lamp according to claim 10, wherein each of the three corners of both of said opposing triangular sides are truncated and said panels defining said triangular sleeve comprise three narrow portions each extending between a respective opposing pair of said truncated corners. 
     
     
       12. A packed electric lamp according to claim 11, wherein said lamp is a sealed-beam reflector lamp in which said broad face is one of a rectangular lens and a circular lens and said tapered body comprises a reflector. 
     
     
       13. A packed electric lamp according to claim 11, wherein said carton is comprised by a unitary blank having three articulated panels for defining said triangular sleeve and two opposing primary triangular flaps each articulated from respective ones of said three panels for closing the open ends of the triangular sleeve, each of the three corners of both triangular flaps being truncated and said three articulated panels including three narrow portions each for extending between respective pairs of the truncated flap corners.